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What is the The Scientific Method?

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Kristian Sobiesiek

on 22 November 2013

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Transcript of What is the The Scientific Method?

The Metric System.
Kilometer= 1000 meters
Hectometer= 100 meters
Dekameter= 10 meters
(meters,liters,grams)= 1
Decimeter= .1 meters

Millimeter .001 meters

*How to remember this ? :
Motion, and Reference Point
Distance,and Speed
Distance is the length of the path between two points. The SI unit for lenght is the meter (m). For example: The lenght from Desk A to Desk is 3 meters. There are other units you can use to measure distances.
Acceleration is the rate at which velocity changes. In science, acceleration is about speeding up, slowing down, or changing direction
The Customary System
Length : 1 foot (ft) = 12 inches (in)
1 yard (yd)= 3 feet
1 mile (mi)= 1,760 yards

Weight : 1 pound (lb)= 16 ounces (oz)
1 ton = 2,000 pounds

Capacity : 1 cup (c) = 8 fluid ounces (fl oz)
1 pint (pt) = 2 cups and 16 (fl oz)
1 quart (qt) = 2 pints and 4 cups
1 gallon (gal) = 4 quarts

Steps Of the Scientific Method
Step 1: Asking a question.
Step 2: Make a hypothesis.
Step 3: Create a experiment.
Step 4: Carry the experiment.
Step 5: Look and record all the data.
Step 6: Organize and analyze all the data.
Step 7: Write a conclusion.
Step 8: Communicate with others with your results.
Step 9: Repeat the process.
Scientific Method- the method of looking at a problem, thinking, experimenting, and recording data in order to prove whether the hypothesis right or wrong.
What is the The Scientific Method?
Always ask yourself a question that you seem interested to and explicit the idea you want to experiment on.
Step 1: Ask a question.
Step 2: Make a hypothesis.
Look up information based on your idea..
Make an educated guess use If....then statement Example:
we make the board go at 10 degrees
the marble will go faster. This educated guess is known as a: hypothesis.
Make a prediction based on your hypothesis.
Step 3:Create a Experiment
Before anyone does that make sure you identify and have all the variables.
Write a procedure that will tell all the things you have to do.
Also write down your materials in order to do your experiment.
Make a data or table so that you can get all your data for your experiment.
Step 4: Carry (conduct) your experiment.
Follow your procedure steps. Make sure you do it cautiously and thoroughly.
Take caution of all material and use them right.
Record the variables (manipulated variable-the part of the experiment that you are changing. responding variable- the result of the manipulated variable. controlling experiment- the parts of the experiment that doesn't change)
Also repeat the experiment at least three times. Take averages if needed.
Step 6: Organize and analyze results
If needed create graphs to make your data seem easier to understand.
Look over all the observations if needed
Identify patterns and trends.
Observe and take careful notes of what you see during the experiment
Step 5: Observe and recording data.
Write about if your hypothesis was right or wrong.
Explain possible errors that could have happened today.
Write about how this information is important to you in the future.
Step 7: Write a conclusion.
Write a report to tell what overall happened in your experiment.
Talk about it with others and compare and contrast with each others and share data.
Step 8: Communicate with others.
If the experiment did not answer your question you asked, revise, and repeat until your question is asked. Many times you must "complete an experiment many times before making important discoveries".
Step 9: Repeat the process.

The Scientific Methods and Speed.
Centimeters= .01 meters

what the rest of the world uses expect USA.
This type of measurement is only used in USA.
Motion -
an object is in motion if its position changes relative to another object
Reference Point -
is a place or object used for comparison to determine if something is in motion
This video will talk about reference point.
This song will tell you (in a annoying way) about motion.
How do we calculate speed distance and time?
D= distance
S= speed
T= time
How does this triangle work?
We cover the one we want to solve and it will give us an equation.
For example: Kristian runs 15 seconds. In 15 seconds he goes at a total of 45 feet. What is his speed?
First, we find the thing we need to solve which is speed.
Then, cover the "S" and it gives you "D" over "T".
The equation is:

Then we put 45 feet (distance) and 15 seconds (time)
45 feet

15 seconds
= 3 f/s
Kristian ran at 3 ft/sec

Example of using the Scientific Method in a experiment.
Marble Shoot
Question: Two pieces of cardboard are at a 90 degree angle. One is 2 feet and the other is 4 feet.
Kristian wonders: What if I gave
a .25 second head start on the
2 foot piece of cardboard? Will the two marbles meet at the very end?
Hypothesis: If the I gave the .25 second head start on the 2 foot piece of cardboard then the two marbles will meet.
Manipulated variable: The marble going down the 4 foot piece of cardboard.
Responding variable: How fast the marble will get to the end.
Controlled Variable: The 2 foot platform, the two marbles, stopwatch, and data.
Creating the Experiment:
Procedure :
First: Set up the two platforms side by side.
Second: Make someone hold the two marbles and another person with a stopwatch.
Third: At "go" the person FIRST drops the marble at the 2 foot platform and the person with the stopwatch says "go" when it is approx. .25 seconds and the other person drops the other marble.
Fourth: Do this 3 times and record all data.
Fifth: Write a conclusion.
Creating Your Data and Conducting the experiment:
Marble A (2 feet)
Marble B (4 feet)
Results: This marble beats marble B. Results: This ramp never tied with
marble A.
Try 1 Time: .657 seconds Time: .868 seconds
Try 2 Time: .623 seconds Time: .940 seconds

Try 3 Time: .689 seconds Time: .894 seconds
Materials: One two foot platform at 90 degrees, one four foot platform at 90 degrees, two marbles, pencil, data, stopwatch.
OK... all the same genders pair up (duh.)
Then all find the speeds of Marble A and Marble B but whoever finishes first wins. If the first team gets it wrong the other gets the chance to win.

Marble A Marble B

Try 1: 3.04414003 ft/sec Try 1: (approx.) 4.61 ft/sec
Try 2: 3.210272873 ft/sec Try 2: (approx.) 4.26 ft/sec
Try 3: (approx.) 2.09 ft/sec Try 3: (approx.) 4.47 ft/sec
In the end my hypothesis was wrong. The two marbles didn't meet at all. Marble B at least .200 seconds seconds behind. Possible errors were that I could have dropped the marbles too fast or too slow. Another possible error is that I could have also turned off the stopwatch too late. With this information I can really tell how long of a head start I need so that they will meet. Also I can use better materials for the experiment to maybe get better results. I can use this in the future to determine life-like situations that can happen to me anytime.
is the length of the paths between two points.
of an object is the distance the object moves per units of time. Speed it the type of rate.
as the rate at which velocity changes.
Speed of an object is the distance the object moves per unit of time. Speed is also a type of rate (per second, per minute, per hour). It is found by dividing the distance of the object traveled by its time it takes to move that distance. The rate can tell you the amount of something that occurs or changes in one unit of time.

The triangle is just like the last one but different symbols
What do those symbols mean?
which means "change in"
(final speed)
- v
(initial speed)
a= acceleration
t= time
Lets see what you learned.

Joey ran 4.5 feet per second in 8 seconds. What distance did he run?

Jenny is driving. She began driving at 15 km/sec and her final speed is 32 km/sec. She does this in 12 seconds. What is her acceleration?
36 feet
1.417 km/sec
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